.github/workflows/maven.yml: use latest actions

.github/workflows/maven.yml

@@ -5,19 +5,19 @@ name: Build
 
 on:
   push:
-    branches: [ dspace7 ]
+    branches: [ dspace8 ]
   pull_request:
-    branches: [ dspace7 ]
+    branches: [ dspace8 ]
 
 jobs:
   build:
 
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 17
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@v5
       with:
         java-version: 17
         distribution: 'temurin'